< All CompTIA A+ Notes

Raul | CompTIA A+ | Module 1.8 - Install Appropriate Power Supply

By: Raul Pop | Related Course: CompTIA A+ | Published: April 16, 2017 | Modified: April 16, 2017
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Notepad20/24 Pin/Sata/Molex Connectors

1)Main Power Connector

-20-24 pin


2) SATA Connectors

-15 pins

hard driver,optical driver


3) Molex Connector

-4 pin

large pin connector

Notepad4/8 Pins 12v,PCIE 6/8 Pin 2 Pin Berg

1)4/8 pin 6/8 pin


-extends the 20 pins connectors to 24 for power supply, for video cards,motherboard

2) 2 BERG

This connect is for floppy driver

NotepadPower Supply Wattage,Size

Wattage is the power electrical power

Watts-Volts and Amps

+Amps-hose diameter

+Volts-water pressure



-50% PSU(Power Supply Unit) Max


-ATX-Slightly Larger

-micro ATX-Smaller Square Shape








NotepadPower Supply/Wire Colors

Power Supply Unit(PS4)


-400 watt or Greater

-NA- 110-120 v /60 Hz

-EU/AS-220-240 v-50 Hz

Power Switch =ON/OFF

Button Switch =110/220


-yellow +12v(white)

-black= Grand

-red= SV

-orange= +3.3v

white= 5v

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